charuvi enterprises using different Settings of Hair straightener can achive different temperature, Hairr Straightener With eleven elevator button, every touch can change 5 degrees Celsius, we recommend that you begin to choose highest amount, then according to the hair to red temperature the level. 1. thick dense hair generally choose a higher temperature 210-230 degrees Celsius 2. More generally, air hanging in the temperature 210-190 degrees. 3. Comparison the fine hair. fsh1s Hair Straightener Brush Reviews